package com.yu.tool;

import com.yu.POJO.Student;
import com.yu.POJO.Teacher;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

/**
 * Created with IntelliJ IDEA.
 *
 * @Author: LittleFisher
 * @Date: 2021/06/16/12:53
 * @Description:
 */
public class teaInterceptor implements HandlerInterceptor {
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        HttpSession session = request.getSession();
        Teacher tea = (Teacher) session.getAttribute("tea");
        if(tea!=null){
            return true;
        }
        request.setAttribute("msg","你还没登录，请登录");
        request.getRequestDispatcher("/WEB-INF/views/login.jsp").forward(request,response);
        return false;
    }

    @Override
    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {

    }

    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {

    }
}
